Shukla Paksha and Krishna Paksha are based on cycles of the moon. The fifteen day cycle once the moon is waxing is popularly called Shukla Paksha whereas the day period once the moon is waning is called Krishna Paksha.Every Paksha includes of fifteen tithis (or dates), whereas Shukla Paksha culminates with Purnima or the entire moon while Krishna Paksha culminates with Amavasya, that's the new moon night once the moon isn't visible. In accordance with the Vedic Astrology, phases of the moon, in ...